static pic_value
pic_port_read_string(pic_state *pic){
struct pic_port *port = pic_stdin(pic), *buf;
pic_str *str;
int k, i;
int c;
pic_get_args(pic, "i|p", &k, &port);
assert_port_profile(port, PIC_PORT_IN | PIC_PORT_TEXT, PIC_PORT_OPEN, "read-stritg");
c = EOF;
buf = pic_open_output_string(pic);
for(i = 0; i < k; ++i) {
if((c = xfgetc(port->file)) == EOF){
break;
}
xfputc(c, buf->file);
}
str = pic_get_output_string(pic, buf);
if (pic_strlen(str) == 0 && c == EOF) {
return pic_eof_object();
}
else {
return pic_obj_value(str);
}
}
static pic_value
pic_port_open_output_string(pic_state *pic)
{
struct pic_port *port;
pic_get_args(pic, "");
port = pic_open_output_string(pic);
return pic_obj_value(port);
}
pic_str *
pic_vformat(pic_state *pic, const char *fmt, va_list ap)
{
struct pic_port *port;
pic_str *str;
port = pic_open_output_string(pic);
pic_vfformat(pic, port->file, fmt, ap);
str = pic_get_output_string(pic, port);
pic_close_port(pic, port);
return str;
}
pic_value
pic_xvformat(pic_state *pic, const char *fmt, va_list ap)
{
struct pic_port *port;
pic_value irrs;
port = pic_open_output_string(pic);
irrs = pic_xvfformat(pic, port->file, fmt, ap);
irrs = pic_cons(pic, pic_obj_value(pic_get_output_string(pic, port)), irrs);
pic_close_port(pic, port);
return irrs;
}
static pic_value
pic_port_read_line(pic_state *pic)
{
int c;
struct pic_port *port = pic_stdin(pic), *buf;
struct pic_string *str;
pic_get_args(pic, "|p", &port);
assert_port_profile(port, PIC_PORT_IN | PIC_PORT_TEXT, PIC_PORT_OPEN, "read-line");
buf = pic_open_output_string(pic);
while ((c = xfgetc(port->file)) != EOF && c != '\n') {
xfputc(c, buf->file);
}
str = pic_get_output_string(pic, buf);
if (pic_strlen(str) == 0 && c == EOF) {
return pic_eof_object();
}
else {
return pic_obj_value(str);
}
}